.common-wrapper{
    width: 100%;
    position: relative;
    max-width: 640px;
    min-width: 320px;
    overflow: hidden;
    margin: 0 auto;
    font-size: 16px;
    background-color: #f7f9f9;
    padding-bottom: 20px;
}

.main{
    padding: 20px 15px 0;
}

.main .item{
    position: relative;
    width: 100%;
    margin-bottom: 10px;
}

.main .item-phone{
    margin-bottom:-1px;
}

.main .item-title h3{
    color: #bebebe;
    font-size: 11px;
    text-align: center;
}

.main .item .txt-input{
    width: 100%;
    height: 44px;
    padding: 0;
    border: 1px solid #d7d7d7;
    border-radius: 5px;
    background: #fff;
    font-size: 16px;
    color: #252525;
    -webkit-appearance: none;
}

.main .item .txt-phone{
    padding-left: 43px;
    background: url("../i/login-user.png") #fff no-repeat 6px 50%;
    background-size: 38px 25px;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.main .item  .txt-captcha{
    padding-left: 43px;
    background: url("../i/login-close.png") #fff no-repeat 6px 50%;
    background-size: 38px 25px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

.main .item-captcha #captcha-img{
    position: absolute;
    right: 0;
    top: 1px;
    width: 91px;
    height: 43px;
    line-height: 43px;
    padding-left: 7px;
    border-left: 1px solid #d7d7d7;
    color: #31cc31;
    font-size: 15px;
}

.main .item-btns .btn-next{
    display: inline-block;
    width: 100%;
    height: 40px;
    margin-top: 10px;
    border-radius: 3px;
    background: #31cc31;
    text-decoration: none;
    line-height: 39px;
    text-align: center;
    font-size: 17px;
    color: #fff
}

.main .item .err-tips{
    margin: 13px 0 24px;
    font-size: 14px;
}

.main .item .err-tips a{
     color: #333;
 }

.main .item .err-tips a span{
    color: #31cc31;
}

.main i.r-btn{
    display: inline-block;
    background: url('../i/icon/radio-btn.png') no-repeat -28px 0;
    width: 25px;
    height: 25px;
    vertical-align: middle;
    margin-right: 5px;
}

.main i.right{
    background-position: 0 0;
}